we'll tell you the latest on the memoral plans >> president obama and first lady michelle obama will leave for south affirca to attend the memorial service for nelson mandela. those details coming up. >> icy, snowy weather causes damage to their cars, cancels their flights, and strands them on the interstate. we'll give you a look at weather problems across the >> now to the latest on the worldwide mourning of nelson mandela. yesterday marked the beginning of a week's worth of memorial events honoring the former south african president. flowers and memorabilia have been set up all across south africa. mandela died late thursday at 95. the coming days will be filled with symbolism and solidarity. as well as a mix of western and african traditions. this is all what cnn had on lt. gen. solomon makgale said monday officers would "make sure people are able to grieve in a safe environment." makgale said south african police, diplomats and intelligence services had been in touch protect visiting heads of state, including u.s. more than 80,000 mourners are expected to attend the memorial tue